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NVIDIA GeForce GT 640 Rev. 2

GK208
Graphics Processor
384
Cores
16
TMUs
8
ROPs
1024 MB
Memory Size
GDDR5
Memory Type
64 bit
Bus Width
NVIDIA GeForce GT 640 Rev. 2 Image NVIDIA GK208 Image
The GeForce GT 640 Rev. 2 is an entry-level graphics card by NVIDIA, launched in May 2013. Built on the 28 nm process, and based on the GK208 graphics processor, in its GK208-400-A1 variant, the card supports DirectX 12.0. The GK208 graphics processor is a relatively small chip with a die area of only 87 mm². It features 384 shading units, 16 texture mapping units and 8 ROPs. NVIDIA has placed 1,024 MB GDDR5 memory on the card, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 1046 MHz, memory is running at 1252 MHz.
We recommend the NVIDIA GeForce GT 640 Rev. 2 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a single-slot card, the NVIDIA GeForce GT 640 Rev. 2 does not require any additional power connector, its power draw is rated at 49 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x VGA. GeForce GT 640 Rev. 2 is connected to the rest of the system using a PCIe 2.0 x8 interface. The card measures 145 mm in length, and features a single-slot cooling solution. Its price at launch was 89 US Dollars.

Graphics Processor

GPU Name: GK208
GPU Variant: GK208-400-A1
Architecture: Kepler 2.0
Process Size: 28 nm
Transistors: unknown
Die Size: 87 mm²

Graphics Card

Released: May 29th, 2013
Production Status: Active
Launch Price: 89 USD
Bus Interface: PCIe 2.0 x8

Clock Speeds

GPU Clock: 1046 MHz
Memory Clock: 1252 MHz
5008 MHz effective

Memory

Memory Size: 1024 MB
Memory Type: GDDR5
Memory Bus: 64 bit
Bandwidth: 40.1 GB/s

Render Config

Shading Units: 384
TMUs: 16
ROPs: 8
SMX Count: 2
Pixel Rate: 8.37 GPixel/s
Texture Rate: 16.74 GTexel/s
Floating-point performance: 803.3 GFLOPS

Board Design

Slot Width: Single-slot
Length: 5.7 inches
145 mm
TDP: 49 W
Outputs: 1x DVI
1x HDMI
1x VGA
Power Connectors: None
Board Number: P2131

Graphics Features

DirectX: 12.0
OpenGL: 4.5
OpenCL: 1.2
CUDA: 3.5
Shader Model: 5.0

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ASUS GT 640 1046 MHz 1252 MHz
ASUS GT 640 Formula II 1046 MHz 1252 MHz
Gainward GT 640 1046 MHz 1252 MHz 5.71 inches/145 mm
Galaxy GT 640 1046 MHz 1252 MHz 6.25 inches/159 mm
Galaxy GT 640 Black 1097 MHz 1252 MHz
GIGABYTE GT 640 1046 MHz 1252 MHz 6.18 inches/157 mm
GIGABYTE GT 640 2 GB 1046 MHz 1252 MHz 2048 MB, 6.97 inches/177 mm
Inno3D GT 640 1046 MHz 1252 MHz
Leadtek WinFast GT 640 1064 MHz 1252 MHz
MSI GT 640 Low Profile 1046 MHz 1252 MHz 5.75 inches/146 mm
Palit GT 640 1 GB 1046 MHz 1252 MHz
Palit GT 640 2 GB 1046 MHz 1252 MHz 2048 MB, 1x DVI 1x mini-HDMI 1x VGA
XENON GT 640 LP 1046 MHz 1252 MHz 5.75 inches/146 mm
ZOTAC GT 640 1 GB 1046 MHz 1252 MHz
ZOTAC GT 640 2 GB 1046 MHz 1252 MHz 2048 MB
ZOTAC GT 640 Guild Wars 1046 MHz 1252 MHz Dual-slot